cp's OEIS Frontend

A186214 Number of (n+1)X5 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.

%I A186214 #7 Jul 22 2025 10:19:43
%S A186214 3593,197619,6275745,255375977,9406230423,363322785761,13767728347159,
%T A186214 526156623567189,20038980564800735,764392776658915834,
%U A186214 29139515896102512134,1111151581724887298470,42365735451420875473052
%N A186214 Number of (n+1)X5 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.
%C A186214 Column 4 of A186218
%H A186214 R. H. Hardin, <a href="/A186214/b186214.txt">Table of n, a(n) for n = 1..77</a>
%e A186214 Some solutions for 3X5
%e A186214 ..0..2..1..1..1....1..0..0..0..2....1..0..1..1..2....2..0..1..0..1
%e A186214 ..0..0..0..0..0....0..0..0..2..2....0..0..0..0..0....0..0..0..0..0
%e A186214 ..2..2..2..2..1....1..1..2..2..0....0..0..0..1..1....1..0..1..2..2
%K A186214 nonn
%O A186214 1,1
%A A186214 _R. H. Hardin_ Feb 15 2011